Improved rubber composition

Details Improved rubber composition Improved rubber composition

C - Chemistry, Metallurgy

08

K

C08K 5/14 (2006.01) C08K 5/098 (2006.01) C08L 13/00 (2006.01)

Patent

CA 2409675

The invention relates to novel crosslinkable carboxylated nitrile rubber compositions that also comprise a multivalent salt of an organic acid and a peroxide crosslinking agent. The compositions may also contain nitrile rubber in admixture with the carboxylated nitrile rubber. The rubber may be hydrogenated. Cured compositions made from the crosslinkable compositions display improved properties, particularly an unexpectedly high modulus.

L'invention concerne de nouvelles compositions de caoutchouc réticulables à base de nitrile carboxylé, comprenant également un sel multivalent d'un acide organique et un agent de réticulation peroxyde. Les compositions de l'invention peuvent également contenir du caoutchouc à base de nitrile mélangé au caoutchouc à base de nitrile carboxylé. Le caoutchouc peut être hydrogéné. Les compositions durcies obtenues à partir des compositions réticulables possèdent des propriétés améliorées, et notamment un module étonnamment élevé.

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